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Abstract: Local phase transition from ferromagnetic to paramagnetic state in the regionof the ballistic Ni nanocontacts NCs has been experimentally observed. Wefound that contact size reduction leads to an increase in the bias voltage atwhich the local phase transition occurs. Presented theoretical interpretationof this phenomena takes into the account the specificity of the local heatingof the ballistic NC and describes the electron-s energy relaxation dependenceson the applied voltage. The experimental data are in good qualitative andquantitative agreement with the theory proposed.



Autor: R. G. Gatiyatov, V. N. Lisin, A. A. Bukharaev

Fuente: https://arxiv.org/







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